Don\'t worry
Till now, what we have noticed is RFEs are specifically for
-- Co. financials (non submission)
-- Eduaction credentials evaluation (absence of or from non-INS recognised bodies) and
-- List of previous I140s from your employer (concerning wage uniformity - it\'s a new toy now)
So, basically nothing is on your hands.
All these points should have already been taken care of by the attorney on the first place and that is why they are being paid for.
But yes, like you, I also believe that if the approval is not in, nearing the two month timeframe from the ND, then it\'s more likely to be a RFE and again that will take another one month to get to know the reason.
RFE replies are treated with priority;usually in two weeks after they receive it you should be through.
[ Remember. there are many a rookie lawyer around who are getting baptised with your and my cases !! ]
Good luck.